The purpose of this study is to clarify the possession rate of fetal/infant memory in the womb and/or at
birth and to validate its characteristic. A total of 1620 answered questionnaires of the 3601 distributed were
returned, giving an overall recovery rate of 45.0%. The possession rates of womb and birth memory were 33.0%
and 20.7%, respectively. Parents, too, responded with regard to their own memory from birth, and 1.1% appeared
possessing such memory. The possession rate is relevant to the mother’s feeling and speaking to the fetus during
pregnancy, and irrelevant to the irregularity in delivery. Most memories were positive.